Add setters for width and height percent to visualization widgets to afford more layout control.
Fix slice selection logic.
More layout refinement.
1. Fill callback invocation in getRemoteIndex.
2. Remove code that was taking a 2 step process to stream vcf file (vcfstatsAliveServer + catInputServer)
3. Thanks to Chase, I was able to fix code so that streaming to vcfstatsalive and getting back output stream could happen in one server command. Biggest problem was arguments in URL (too many ?).
Small layout changes so that widgets, panels align. Add back line so that first reference is selected after chart for references is rendered.